Two complementary home energy efficiency grant programs create a splash

I am working with a developer who is building an 8-unit townhouse complex on a rocky site. The current design has an enclosed gagage and one parking spot for each unit a la business-as-usual. I am trying to move him towards a central parking facility to enhance health of individual homes and, ideally, one covered with a green roof. I am finding it hard to come up with design examples and would appreciate any assistance in this direction.

The forum is presented by Wilma Leung (Builder owner of Wisa Healthy Homes)
and David Kelly of CHBA BC.  It comprises of a power point ppt with an open
forum or discussion after.  It is financially supported by MEMPR, CHBA BC